Wall Penetration with Flashing
Typical Detail
This detail shows two-piece flashing installation at wall penetration with proper sequencing of water-resistive barrier, flashing overlap, caulking, and nailing to prevent moisture intrusion around pipes or conduits in 2D CAD format. Developed by APA – The Engineered Wood Association, this detail is drawn from APA publication Build a Better Home: Moisture-Resistant Wall Construction, Form A530 and reflects decades of engineered wood research, testing and field-proven best practices.
This 2D detail is designed for architects, engineers, contractors and building professionals and provides clear, code-compliant guidance.
Available in multiple formats including DWG (AutoCAD), RVT (Revit), and PDF, this detail helps building professionals streamline the design and construction process while ensuring structural integrity and proper installation of engineered wood products.
Published by APA — The Engineered Wood Association.
